Sole treating machine



Jan. 22, 1935.

c. G. BROSTROM 1,988,780

SOLE TREATING MACHINE Filed Feb. 12, 1952 2 Sheets-Sheet l Fig. 1.

EWCQQ Jan. 22, 1935. c BROSTROM 1 v 1,988,780

SOLE TREATING MACHINE Filed Feb. 12, 1932 2 Sheets-Sheet 2 Fig. 2.

Wl/EA/TU/i 03 w QIEEx UNITED STATES PATENT. OFFICE Charles G. Brostrom,

United Shoe Machinery Lynn, Mass, assignor to Corporation, Paterson,

N. J., a corporation of New Jersey Application February 12, 1932, Serial No. 592,618

27 Claims.

This invention relates to sole treating machines and- ;is herein illustrated as chine for applying a stiffening solution to lipped insoles.

In the manufacture embodied in a maof shoes, one well-known method of lasting shoes is to secure the upper to the rib of the insole by mea ns of small wire staples, the lasting being done step by step as the staples are driven.

ticularly desirable that the For this operation, it is parrib of the insole not only should stand upright but have sufficient inherent stiffness so that drive the staples there will be no substantial close to the very if the operator fails to base of the rib tendency for the upper to loosen after the staple-side-lasting, operation has been performed.

Such stiffness of the rib is not always present in a lipped insole because of the light weight material. spoken of as or poor quality of the Even reinforced insoles,

Gem or Economy insoles, though commonly they are made strong enough by the reinforcing canvas to hold the stitches or staples, sometimes are of such a light weight that the rib of the insole does not stand erect and the feather of the insole is likely to curl in thus injuring the quality the completed shoe,

and appearance of the shoe; As a result of this state of affairs, it is the practice in some shoe facto ening solution of relatively ries to apply a stifflight consistency to one side of the rib of the insole and an adjacent surface thereof.

In the casev of reinforced insoles this is usually done after-the canvas has been applied and trimmed and the lip has been set, and the solution is applied to the outside of the rib and the adjacent ferent solutions are used tion and in consistency, it

feather. which vary in composi- Although difwill be sufiicient for the purpose of understanding the invention herein disclosed to think of nature of thin shellac.

- In'vieW of the foregoing,

this solution as of the one important object of the invention is to provide a machine for applying a coating to adjacent surfaces of shoe soles such as a jacent face of aninsole. It being desired thus lip or rib and the feather or adto apply coating material to two surfaces which are not in the same plane, one important feature of the invention resides in the provision of a coating applying roll having a eral surface meeting to peripheral surface and an angularly related latform a ridge, means being provided for supplying coating material to each of said surfaces.

To facilitate the presentation of insoles to the machine and to insure perfect contact between the work a nd the applying surfaces of the coating applying roll, the illustrated machine provides means for in contact with both of faces of the'applying roll.

supporting the work the angularly related sur- Also, as illustrated,

a the supporting means comprises means contacting with an unlipped surface of the .sole and means engaging the uncoated side of the lip,

thereby to hold the surfaces to be coated in opand withdrawal of the work. Thus, in the illustrated machine, a sole is supported in a horizontal position on a depressible work supporting roll and the marginal portion of the sole is held against the periphery of theapplyingroll by the depressible roll. The illustrated machine also provides a the lip of the sole in contact with the lateral or radial surface of the applying roll. Preferably, and as shown, provision is made for adjusting the normal position of this lip supporting roll in order to bring it to a position most effective with a sole of any particular thickness and a lip of any thickness.

The operation of the illustrated machine is facilitated in accordance with still another featureof the invention by the provision of operator-controlled means serving, displace the supporting'rolls to facilitate the insertion, or removal, of a piece of work. As illustrated, the displaceable rolls are interconnected so that actuation of a single operator-controlled means such as a treadleserves to disrolls.

Still further to facilitate the presentation of work to the coating applyingmeans, the illustrated machine is provided with a guide for engagement with a sole in the corner between the lip and the adjacent flat surface of the sole whereby, as the sole is fed along by the feeding means engaging the margin of thesole, and the lip is held in contact with the lateral surface of the applying role, any tendency of the applying roll to overrun the lip is prevented and the feeding is made substantially automatic.

These and other features ofthe invention are described in the following specification and illustrated in the accompanying drawings, in

which 7 Fig. 1 is a front elevation of the machine with parts broken away;

' Fig. 2 is an angular view of the machine on a larger scale; and

Fig. 3 is a fragmentary vertical section on athe relation of the work with a frame in which is journaled a shaft '12 carrying a coating roll with coating material 14, this roll being supplied by means of a series of driven rolls 16, '18 which pick up the solutions from a receptacle 20 (Fig. 2) and deliver it to the the illustrated supporting'means are laterally displaceable roll for holding where it will be when actuated, to

of the operating parts applying roll. The coating material is supplied to the receptacle 20 from an inverted container 22 and the rolls 14, 16 and 18 areinterconnected by gears 24 we drive shaft 26 having tight and loose driving pulleys 28. Mounted upon a spindle 32 to a limiting means of a handle 44. The arrangement thus far described is of the same type as that shown in Letters Patent of the United States No, 1,851,162

granted March29, 1982, upon the application of John W. Cosgroveg 'A piece of Work 'suchas an insole 46, having a feather 48 and a-lip or rib 50, is, in the use of the machine, supported upon a table 52 which is attached to'a bracket 54 adjustably positioned upon thearm 32'by means of a slot-and-screw connection 56. The table 52 is constructed of sheet metal and is cut away at'its right hand rear edge to expose the upper portion of the periphery of the work'supporting roll 36.

This supporting roll 36 holds the margin or feather 48' of the insole in contact with the periphery 58 of the applying roll 14. The applying roll is also'provided with a lateral, substantially radial surface 60 which meets the periphery at an angle and forms a salient angle or ridge therewith. Thislateral'surface is slightly conical and both this surface and the peripheral surface 58 are corrugated, for example, by means of 1 a diamond-shaped reversed knurl which forms a series of pockets. After theroll has been knurled the surface is lightly ground to shape, leaving flattened ribs or divisions between these diamondshaped pockets.

has a cylindrical surface and an outstanding :flange which, for economy of manufacture, is

madeof a plate attachedby screws, While the roll 18 is shaped substantially like the roll 14 though somewhat larger. The control of the quantity of'coating material-removed from the receptacle by the roll 18 is secured by adjusting astripper roll 61 (Fig. 2) by means of a thumb nut 62 (Fig. 1) this arrangement being more fully shown and described in the patent to which reference has been madeabove.

The lip 50 is held with its outer surface in contact with the lateral, substantially radial surface 60 of the applying roll by means of a conical supporting-roll 64; This-roll 64 is made displace-- able laterally by mounting it upon a lever 66 pivoted at 68 in a bracket 70 attached to the in any suitable manner as,

frame o'f'the machine for example, by means of an attaching screw '72 and a concealed tongue-and-groove connection. The conical supporting roll 64' is mounted for free rotation in the end of a crooked piece 76 adjustably secured to a straight piece 78 which is mounted upon the lower end of the lever 66. The crooked-piece'lfi has a horizontal rib-andgroove connection 80 to the straight piece '78 andis provided with a horizontal slot through which passes a securing bolt 82; The straight piece '78'has'a vertical rib-and-groove connection 84 to the lower end of the lever- 66 and is provided with a vertical slot through securing screw 86. The upper end. of the lever 66 a push rod 96 table bracket 54. This rod 96 has nuts which In order that the coating ma' I: terial may be properly supplied to the surfaces 58 which passes a' is bent horizontally over the frame and provided with a depending lug 88 to which is connected a treadle rod 90. A treadle 92 is secured to the lower end of the treadle rod 90. The lever 66 also has another depending lug 94 to which is secured passing through a lug 98 on the bear against'the lug 98. As a result, when the treadle is depressed the lever 66 is swung clockwise on itspivot 68 and the arm 32 is swung counterclockwiseon .its pivot 30.

It is desired that the conical supporting roll 64 shall bear against the reinforcing canvas upon the inside of the lip 50 with considerable force in order not only that it shall hold the lip against the lateral face of the applying roll 14 but also in order that it shall be effective more fully-topress the canvas into the corner or rentrant angle between the lip and the face of the insole, thereby to make sure that there are no gaps between the canvas and the bottom of this crease. Inasmuch as this machine is used immediately after the canvas has been applied to the insole the adhesive which vas is usually in such condition as to allow the canvas to be moved slightly for the purpose of pushing it into the bottom of the crease. Since a considerable pressure is desired upon the roll 64, another spring 102 is provided to act directly upon the lever 66 and to supplement the action of the spring 40 so'far as the conical roll64 is concerned. It is desired that this spring shall have substantial strength and at the same time that it shall be of substantial length so that a considerable lateral movement can be given to the conical roll 64 when it is desired to insert a piece of work, without reaching the limit of compression of thespring 102. Accordingly, a rod 104 ispivoted' to the right-hand end of the lever 66 and is surrounded by the spring 102 which bears at its upper end against a stop nut 106 upon the rod and at its lower end upon the cross bar of a saddle 108 pivoted at 110 upon a'lug forming part of the bracket '70 by means of which this lever 66 is mountedupon the frame of the ma By adjusting the stop nut 106 the tension of the spring may be varied; If the insoles to be treated are thicker or thinner than those previously treated, then the conical roll 64 may be adjusted up and down by loosening the screw 86 and moving the straight piece 78 along the lever. Adjustment in a horizontal direction subchine.

stantially parallel to the line of feed is also proby which the- Vided by loosening the screw 82 crooked piece 76 is held in position and moving it from front to back as viewed in Fig. 1, thereby varying the relation of the conical supporting roll 64 to the bite of the rolls 14 and 36.

To assist inpresenting work to the machine, there is provided a gage 112 having a depressed end surface 114. This gage may be adjustably positioned in a holder 116 by a set screw 118 and the holder may be moved up and down by loosening a set screw 120 to vary its position in a block 122 adjustably secured on a rod 124 extending outwardly from the frame of the machine.

The gagell2 is positionedrather carefully to.

the operator between the rolls of the machine lip of Without:

and will automatically follow aroundthe the insole and pass out of the machine.

is used for securing the canfeather of the insole. When.

such a gage the applying roll 14 with its radial surface 60 will very promptly ride over the lip of the insole and render the machine inoperative for its intended purpose. I'he depressed end surface 114 is so shaped that it tends to right or push to an upright position any misshaped portion of the lip which is bent outwardly.

. In the use of the machine, the operator will start the machine in operation by shifting the belt on the pulleys 28 and then, depressing the treadle 92, will position an insole upon the table 52 with its lip between the conical roll 64 and the applying roll 14 and with its feather between said applying roll and the supporting roll 36, as shown in Fig. l. The treadle may then be released and the work will be gripped between the applying roll 14 and the supporting roll 36 and fed through the machine, the lip being held against the .lateral face of the applying roll by means of the conical roll 64. The normal separation of the rolls 14 and 36 may be adjusted by means of the handle 44 and the relative timing of the separation of the supporting rolls from the applying rolls may be adjusted by varying the position of the nuts 100. Insoles, as usually constructed, have a lip or rib which starts approximately at the heel breast line and terminates at the heel breast line. Such insoles may readily be presented to the machine at one terminus of the lip, fed around the forepart and the toe end, and taken out of the machine at the other terminus of the lip. If, however, it is necessary to remove or insert an insole at a position near the forepart thereof, this can readily be done by a full depression of the treadle 92, thus giving ample separation between the supporting rolls and the applying roll.

Since, insome of its aspects, the invention is applicable to coating the angularly related surfaces not only of various types of insoles but also to such surfaces upon outsoles, for example the flap and the channel of an outsole, either before or after it has been attached to a shoe, the term lip has been used in the claims to indicate any upstanding'flap, rib, or the like, extending out from the surface of a sole quite regardless of whether this lip is to be left upstanding or is to be later pressed down against the sole.

, Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for applying coating material to shoe soles, a driven coating-applying roll having a peripheral surface for applying coating material to one surface of a sole and a lateral surface forming a salient angle with said first coating surface for applying coating material to an adjacent surface of the sole which forms a reentrant angle with the first sole surface, means for supplying coating material directly to each of said surfaces, and means for controlling the quantity supplied.

2. In a machine for applying coating material to shoe soles, a driven coating-applying roll having a peripheral surface for applying coating material to one surface of a sole and an angularly related lateral surface for applying coating material to another surface of said sole, means for supplying coating material to said surfaces, and means arranged on opposite sides of a sole for supporting distinct portions of said sole for contact with said angularly related surfaces.

3. In a machine for applying coating material to lipped soles, an applying roll having angularly related applying surfaces adapted to apply coating material to the lip and'to an adjacent surface of a sole, supply and control means cooperating with said roll and arranged to apply a uniform coating to said surfaces, and means for holding the lip of a sole in contact with a coating-carrying surface of said applying roll.

4. In a machine for applying coating material to lipped soles, an applyingroll having angularly related applying surfaces adapted toapply coating material to the lip and to an adjacent surface of a sole, one or more rolls for supplying coating material to the respective surfaces of the applying roll, and means for holding the lip and the adjacent portion of a sole in contact with the angularly related coating-carrying surfaces of said applying roll.

5. In a machine for applying coating material, an applying roll having a peripheral surface and a lateral surface arranged for applying coating material angularly related to form a ridge, means for supplying coating material to said surfaces, and displaceablemeans for holding adjacent angularly related surfaces upon a piece of work in contact with said applying surfaces. i

6. In a machine for coating lipped soles, an applying roll having portions of its peripheral surface and its lateral surface exposed for the application thereby of coating material to a sole, means for supplying coating material to said surfaces, a feed roll for supporting the margin of the sole in contact with the peripheral surface of the applying roll, and a displaceable roll for holding the lip of the sole in contact with the lateral surface of the applying roll.

7. In a machine for coating lipped soles, an applying roll having a peripheral surface and a lateral applying surface, and means movably mounted on said machine for lateral displacement and arranged for holding the lip of a sole in contact with said lateral surface.

8. In a machine for coating lipped soles, an applying roll having adjacent coating surfaces which form a salient angle for applying coating material to the lip and an adjacent surface of a sole, supporting means contacting with the opposite unlipped surface of the sole, and means engaging the uncoated side of the lip to hold the latter in operative relation to the applying roll.

9. In a machine for coating lipped soles, a roll for applying coating material to one surface of the lip and an adjacent surface of a sole, supporting means engaging the fiat surface of the sole, other supporting means engaging the lip of the sole to hold it in operative relation to the applying roll, and operator-controlled means for displacing one of said supporting means to facilitate the insertion of work in the machine.

10. In a machine for coating lipped soles, a roll for applying coating material to one surface of the lip and an adjacent surface of a sole which is positioned horizontally with the lip extending up, means engaging the under side of the sole for supporting it in operative relation to the ap- I plying means, and means engaging the other side of the lip to hold the latter in contact with the applying roll.

11. In a machine for coating lipped soles, a roll having angularly related surfaces forming a ridge for applying coating material to a portion of the surface and to the lip of a sole, a support for the margin of the sole, and means comprising a displaceable roll for supporting the lip to hold it in contacting relation to said applying roll.

12. In a machine for coating lipped soles, means for applying coating material to the margin and to the lip' of a' sole, a supportfor' the margin of the sole, means for supporting the lip of the sole to hold it in coacting relation to said applying means comprising a displaceable roll, and meansfor supporting said roll adjustable toward and.

to the lip of a sole, a supportfor the'margin of the sole, means for supporting the lip of the sole to hold it in operative relation to said applying means comprising a displaceable roll, and means for supporting said roll adjustable in a direction parallel to the path of movement of the work.

14. In a machine for coating lipped soles, means for applying coating material to the margin and to'the lip ofa sole, a support for the margin of the sole, means for supporting the lip of the sole to hold it in operative relation tosaid applying means comprising a displaceable roll, and means for supporting said roll adjustable vertically'and in a direction parallel to the "path ofmovement of the work.

15. In a machine for, coating insoles, a-coating applying-member adapted to coat the feather and the lip of an insole, displaceable means-f0r'supporting the feather in contact with said applying member, laterally displacea-ble means for supporting the lip of theinsole in operative relation to said applying member, means for interconnect-,

ing said supporting means, and operator-controlled means for effecting simultaneous displace-- inent of said' supporting means. l

16. In a machine for coating lipped soles, means for coating the lip of asole and an adjacent surface thereof, a laterallydisplaceab-l'e meansfor holding the lip in operative relation to said coating means, a support forsaid 'holdingmeans pivoted on a "horizontal axis, and resilient means holding meanstoward' the coatfor pressing said ing means.

17. In a coating applying machine; a frame, a coating roll mounted on a'horizontal shaft'in said'frame, a laterally displaceablework' supportingroll, a lever for supporting said roll pivoted above the applying roll and having an arm overhanging the frame, resilient meansfor urgingsaid supporting roll toward the applying roll comprising a spring associated with the overhanging arm, and meanspivotedto the arm and frame respectively for transmitting thereto the reaction of said spring.

frame, an' applying rollcarried upon a shaft 1 journaled in said frame, a laterally displaceable applying roll having a peripheral coating surface and a lateral coating'sin'face meeting to form a ridge, means for supporting one surface of a sole in contact with the peripheral surface of the roll while the lip of the sole coacts with the lateral surface of'the applying roll, and means engaging sole with respect t'oasaid said lip for guiding said applyingroll.

20. In amachine'for coating lipped soles, an

applying roll having a peripheral coating surface and alateral'coating surface, means for support-' ing one surface of a sole in contact with the peripheral surface of the roll, the lip of the sole coacting with the lateralisurface thereof, and a gage positioned in front of said roll for engagement with said lip.

21. In a machine for coating a lipped sole, an applying roll having a peripheral coating surface and a lateral coating surface, means for supporting a surface of a sole adjacent to the lip thereof in contact with the peripheral surface of the roll, the lip of the sole coacting with the lateral surface thereof, and a gage positioned in front of said roll for engagement with said-lip on the side thereof toward the applying roll to prevent the applying roll from overrunning the lip.

and a lateral coating surface, means forsupporting a surface of a sole adjacent to the lip thereof in contact with the peripheral surface of the roll;

the'lip of the sole coacting with the lateral surface thereof, and a gage positioned in front of said roll for engagement with the sole in the corner between the lip and the sole.

'23; In a machine for coating lipped soles, an applying roll having a peripheral coating surface, and a lateral coating surface, feeding means coacting with the applying roll for supporting the margin of the sole in contact with the peripheral surface of the roll, a roll for holding the lip in contact with the lateral surface of the applying roll; and a guide for engagement with the soleadjacent to the corner between the lip and the margin thereby to prevent overrunning ofthe lip by the applying roll.

24. In a machine for cementing lipped shoe soles, a rigid coating applying member having surfacesadapted for simultaneous engagement with the lip and the adjacent surface of a sole, respectively, and bodily. yieldable means forforcing the lip into engagement with one of the surfacesof the applying member.

25. In a machine for cementing lipped shoe soles, a-coating applying roll having applying surfaces'forming a salient angle and adapted for simultaneous engagement with the lip and the adjacent surface of a sole, respectively, and a 26. In a machine for applying coating matej rial to shoe parts having adjacent surfaces which 18, In a machine for coating lipped soles, a

form a reentrant angle, a coating applying roll having adjoining work engaging surfaces of revolution which intersect to form a salient angle,

means, including a receptacle for cement, for delivering cement mechanically into direct contactwith said surfaces and for controlling the quantity. of coating material applied by said surface, and means for supporting at least one'surface of the shoe part in firm contact with the corresponding surface of the applying roll.

27. In a machine for coating shoe parts havi ing adjacent portions the surfaces of which form 19. In a machine for coating lipped soles, an

areentrant angle, coacting complementary rolls for gripping one portion of the work and feeding it and applying a coating to said surfaces one of which lies directly upon the gripped portion of the work, that roll which applies coating material being provided with intersecting surfaces at least on of which is conical, means for supplying coating material to the two intersecting surfaces of said applying roll, and means for controlling the quantity of coating material applied. v e CHARLES GL'BROSTROM. 

